Pith Number

pith:I2F6BJTU

pith:2017:I2F6BJTUKSGXM3WGGSKHDBQ33V

not attested not anchored not stored refs pending

Interacting galaxy NGC4656 and its unusual dwarf companion

Anatoly V. Zasov, Anna S. Saburova, Oleg V. Egorov, Roman I. Uklein

arxiv:1705.03523 v1 · 2017-05-09 · astro-ph.GA

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{I2F6BJTUKSGXM3WGGSKHDBQ33V}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more · Embed verified badge

Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

✓ Portable graph bundle live · download bundle · merged state

The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same current state with the deterministic merge algorithm.

Receipt and verification

First computed	2026-05-18T00:41:32.916902Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

468be0a674548d766ec6349471861bdd7975e40831c77d360d88ce744cb076b6

Aliases

arxiv: 1705.03523 · arxiv_version: 1705.03523v1 · doi: 10.48550/arxiv.1705.03523 · pith_short_12: I2F6BJTUKSGX · pith_short_16: I2F6BJTUKSGXM3WG · pith_short_8: I2F6BJTU

Agent API

Resolver JSON Graph JSON Events JSON Schema Signing key

Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/I2F6BJTUKSGXM3WGGSKHDBQ33V \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: 468be0a674548d766ec6349471861bdd7975e40831c77d360d88ce744cb076b6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a37d1d5bae44993631957adfe3c24fa4cd17b2b0191e171cd138dd6fb1ac89a5",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2017-05-09T20:07:29Z",
    "title_canon_sha256": "849a6e5d5e82c0ef5811f99dff5e4023ed3883a477e30be3649c628442c52257"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1705.03523",
    "kind": "arxiv",
    "version": 1
  }
}